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Make sure this part fits

Ford 1L3Z-6303-BA Crankshaft Assembly

1999-2019 Ford 1L3Z6303BA

Customer Questions & Expert Answers (3)
1L3Z-6303-BA Ford Crankshaft Assembly Product Photo 1 of 1
1L3Z-6303-BA Ford Crankshaft Assembly Product Photo 1 of 1
1L3Z-6303-BA Ford Crankshaft Assembly Illustration 1 of 1
  • Replaced By
    F75Z-6303-AC
  • Manufacturer
    Ford
Make sure this part fits
$234.62 MSRP: $346.67
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  • Specifications
  • Fitment
  • Q&A

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  • Product Specifications

    BrandGenuine Ford
    Manufacturer Part Number1L3Z-6303-BA, 1L3Z6303BA
    Part DescriptionCrankshaft Assembly
    Item Dimensions10.0 x 8.5 x 25.8 inches
    Item Weight56.20 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerFord
    SKU1L3Z-6303-BA
    WarrantyThis genuine Ford part is guaranteed by Ford's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65

  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2006-2014, 1999-2004 Ford E-1508 Cyl 5.4L, 8 Cyl 5.4L Modular SOHC4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 4AT 4R100, 4AT 4R70W, 5-Speed Automatic Transmission 5R110W - HI/Torque, 5-Speed Automatic Transmission 5R110W NAAO, 6-Speed Automatic Transmission (6R140)
    2006-2014, 1999-2004 Ford E-2508 Cyl 5.4L, 8 Cyl 5.4L Modular SOHC4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 4AT 4R100, 4AT 4R70W, 5-Speed Automatic Transmission 5R110W - HI/Torque, 5-Speed Automatic Transmission 5R110W NAAO, 6-Speed Automatic Transmission (6R140)
    2006-2019 Ford E-350/E-350 Super Duty8 Cyl 5.4L Modular SOHC4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Automatic Transmission 5R110W - HI/Torque, 5-Speed Automatic Transmission 5R110W NAAO, 6-Speed Automatic Transmission (6R140)
    2006-2019 Ford E-450 Super Duty8 Cyl 5.4L Modular SOHC4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 5-Speed Automatic Transmission 5R110W - HI/Torque, 5-Speed Automatic Transmission 5R110W NAAO, 6-Speed Automatic Transmission (6R140)
    2000-2005 Ford Excursion8 Cyl 5.4L4AT 4R100, 5AT
    1999-2002 Ford Expedition8 Cyl 5.4L4AT 4R100, 4AT 4R70W
    1999-2004 Ford F-1508 Cyl 5.4L4AT, 4AT 4R100, 4AT 4R70W, 5MT
    1999 Ford F-2508 Cyl 5.4L4AT 4R100, 4AT 4R70W, 5MT
    2001-2004 Ford F-250 Super Duty8 Cyl 5.4L4AT 4R100, 5AT, 5MT, 6MT
    2001-2004 Ford F-350 Super Duty8 Cyl 5.4L4AT 4R100, 5AT, 5MT, 6MT
    View More

  • Customer Questions & Expert Answers

    Q:
    Does the PN fit my vehicle?
    A:
    You can Select Your Vehicle to check if 1L3Z-6303-BA fits your vehicle.
    Posted and answered by Ford Parts Specialist Sonny
    Q:
    What should be done with the Plastigage material after measuring the Crankshaft for the 2004 Ford F-150? Posted by Hassan H.
    A:
    Carefully scrape all traces of the Plastigage material off the main bearing journals and bearing insert faces, ensuring to remove all residue from the oil holes. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Joseph / Jul 02, 2024
    Q:
    How is the main bearing oil clearance determined for the Crankshaft of the 2002 Lincoln Navigator? Posted by Ridge W.
    A:
    Compare the width of the crushed Plastigage on each journal to the scale printed on the Plastigage envelope to obtain the main bearing oil clearance. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Clayton / Jun 06, 2025

Genuine Ford Part 1L3Z-6303-BA, the Right Choice

To ensure reliability, purchase part # 1L3Z-6303-BA Crankshaft Assembly. It is also called Crankshaft. OEM parts are of high quality and known for their longevity. This is because they are built to the Ford standards which are relatively high and undergo rigorous quality control testing. This part fits specific Ford E-150, E-350/E-350 Super Duty, F-150 models. It fits Lincoln Navigator.

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